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Showing posts from 2016

Email Alerts are not received...

In one of application, Email alerts are sent using SQL sp_send_dbmail stored procedure. Email alerts were working properly, but suddenly noticed email alerts are not received.

To troubleshoot the issue, first I checked the msdb.dbo.sysmail_event_log table using the below query.

SELECT log_id, event_type, log_date, description, process_id, mailitem_id, account_id, last_mod_date, last_mod_user
log_date DESC

If there is any error, you should see records with the event_type value as error.
In my case there are records with event_type value as error, and the description value for those records is same as below

The mail could not be sent to the recipients because of the mail server failure. (Sending Mail using Account 3 (2018-02-01T10:41:27). Exception Message: Cannot send mails to mail server. (The SMTP server requires a secure connection or the client was not authenticated. The server response was: Authentication required).  )

As per the error descript…

Split comma separated values in a column to multiple columns in SQL...

In this post I am sharing how to split comma separated values in a column to multiple column in SQL.
In this case, we have a table with two columns. One is with the Code and the other column with the seven number values separated by a comma as Numbers

Code           Numbers
A                10,2,55,5,67,11,45
C                1,32,5,15,7,71,35
--                 ---------------------

The expected output is as below

Code          V1  V2  V3  V4  V5  V6  V7
A                10     2   55    5    67  11   45
C                   1   32    5   15     7   71  35

It can be achieved by using the below query.

SELECT Code, [1] AS [V1],[2] AS [V2],[3] AS [V3],[4] AS [V4],[5] AS [V5],[6] AS [V6],[7] AS [V7]
    SELECT [Code], [Numbers]
    FROM [SampleTable]
) as a
CROSS APPLY string_split([Numbers],',')
) as SourceTable
    FOR rn IN ([1],[2],[3],[4],[5],[6],[7])

Download SQL Server 2016 Developer edition for free...

Use the below link to download SQL Server 2016 Developer edition for free

Also under the Subscription, you can download the some other useful software as shown in the below image, under the Visual Studio Dev Essentials subscription.

Hope this will be helpful.

#Error while showing DateTime field with Blank or Space in a SSRS Report...

In a SSRS Report, DataSet returns a column which contains datetime values in string data type.
Due to that it contains values with spaces or blank. Let assume the particular field name is "DateValueField".
To show that in the SSRS Report, initially the below expression is used.

=IIf(IsNothing(Fields!DateValueField.Value) OR LTRIM(RTRIM(Fields!DateValueField.Value))="", "", FormatDateTime(Fields!DateValueField.Value, DateFormat.ShortDate))

Eventhough the above expression seems to be correct, when we ran the report, it gives the value as #Error for the rows which contains Blank or Space for the DateValueField.
But it gives the correct value for the rows which contains a valid datetime value.

Actually the issue exists with SSRS IIF expression and to overcome that, we have to modify the IIF expression as below.

=IIf(IsNothing(Fields!DateValueField.Value) OR LTRIM(RTRIM(Fields!DateValueField.Value))="", "", FormatDateTime(IIf(IsNothing(Fie…

SSIS Script Component to Trim data in all the columns...

There are situations that we may have large number of input columns and we may need to Trim the data in those. Normally we can use Derived Column component to get done this, but in this scenario it is very difficult due to the large number of columns.
In such scenario it is easy to use Script Component and it can be configured to trim data for any number of input columns.

Solution is as below.

We can have a Script Component to trim data and there are some steps to follow.
We need to select on the required input columns and change the Usage Type of those columns to ReadWrite as below image.

Then click on Edit Script and follow the below steps to add the required code in C#
Add the using System.Reflection; namespace
Then modify the Input0_ProcessInputRow method as below
 public override void Input0_ProcessInputRow(Input0Buffer Row)
         * Add your code here
        foreach (PropertyInfo p in Row.GetType().GetProperties())

           if (object…